diff --git a/README.md b/README.md
index 44a9774..713b155 100644
--- a/README.md
+++ b/README.md
@@ -14,6 +14,7 @@
 </div>
 
 > [!CAUTION]
+> **当前仅提供开发快照，已撤下公开 Release。仅供开发者在隔离的测试环境中验证，不建议普通用户部署。**
 > **此项目仍处于早期开发阶段，您不该在任何生产环境使用该项目。若产生任何问题，贵用户的使用行为与 FelisMC 团队无任何民事刑事法律关系。**<br>
 > **THIS PROJECT IS STILL WIP, YOU SHOULD DO NOT USE THIS PROJECT IN ANY PRODUCTION USAGE. WE ARE NOT RESPOND FOR ANY LEGAL OR HUMANLY PROBLEM.**
 
@@ -64,10 +65,10 @@
 
 ## 使用方式
 
-在已准备好的 Linux 主机上执行：
+开发测试需在已准备好的 Linux 测试主机上显式选择 `dev` 通道（跟随 `main`，从源码构建）：
 
 ```bash
-curl -fsSL https://raw.githubusercontent.com/FelisMC/Felis/main/deploy/bootstrap.sh | sudo bash
+curl -fsSL https://raw.githubusercontent.com/FelisMC/Felis/main/deploy/bootstrap.sh | sudo FELIS_VERSION_BOOTSTRAP=dev bash
 ```
 
 脚本将安装 K3s，在 K3s 中部署 PostgreSQL 与控制平面，随后启动设置向导。设置完成后，通过浏览器访问所配置的域名即可进入控制面板。
@@ -76,7 +77,7 @@ curl -fsSL https://raw.githubusercontent.com/FelisMC/Felis/main/deploy/bootstrap
 
 * **认证源管理**：Owner 可在左侧“平台 → 认证源”添加、编辑、排序、停用第三方 Yggdrasil 认证站，并测试认证接口。保存后立即用于下一次登录和角色查询，无需重启；面板配置优先于安装配置。已保存的永久标识不能改名或删除，以保留玩家 UUID 与账号绑定；不再使用的源可停用。Mojang 始终优先验证。Nano 继续使用 TOML 配置。
 
-* **支持的系统**：CentOS Stream 9（aarch64）已在实机上验证；Ubuntu 24.04（x86_64）在每次推送时由 CI 执行全新安装、重复安装、升级及上述安装命令（参见 [运维手册 §1](docs/operations.md#1-supported-hosts)）。
+* **支持的系统**：CentOS Stream 9（aarch64）已在实机上验证；Ubuntu 24.04（x86_64）在每次推送时由 CI 验证开发构建的全新安装与重复安装（参见 [运维手册 §1](docs/operations.md#1-supported-hosts)）。
 
 * **安装前检查**：安装器在修改主机之前检查内存、磁盘、端口、网段冲突、已有的 Kubernetes 及外网连通性。发现问题时一次性列出全部问题并退出，主机保持原状（检查项参见 [运维手册 §1](docs/operations.md#1-supported-hosts)）。
 
@@ -86,6 +87,8 @@ curl -fsSL https://raw.githubusercontent.com/FelisMC/Felis/main/deploy/bootstrap
 <summary>安装来源与受限网络环境下的安装</summary>
 <br>
 
+以下说明发布机制；当前暂无公开 Release 附件，开发测试使用源码构建。
+
 安装发布版时，二进制文件、全部镜像及 Velocity 插件均取自该版本由 CI 预构建的 release 附件，逐一校验 `SHA256SUMS` 后导入。主机无需安装 Docker、Gradle 或 Go，也无需访问 Docker Hub。若某个附件缺失或校验失败，仅该镜像回退为本机构建，并输出提示（参见 [故障排查 §15c](docs/troubleshooting.md)）。
 
 也可将附件预先复制到主机，再通过 `FELIS_ARTIFACT_DIR=<绝对路径>` 安装，此时 Felis 自身的二进制、镜像与插件均从该目录读取。k3s 及其镜像、JRE、cloudflared、Velocity 与 Via 插件仍从 GitHub 和 PaperMC 下载；RHEL、Fedora、openSUSE Leap 等启用 SELinux 的主机还需从 rpm.rancher.io 安装 k3s-selinux；系统软件包来自发行版软件源。
diff --git a/README_EN.md b/README_EN.md
index 03cc1cb..174535e 100644
--- a/README_EN.md
+++ b/README_EN.md
@@ -14,6 +14,7 @@
 </div>
 
 > [!CAUTION]
+> **Only development snapshots are available; public releases have been withdrawn. These builds are for developers testing in isolated environments and are not recommended for general deployment.**
 > **THIS PROJECT IS STILL WIP, YOU SHOULD DO NOT USE THIS PROJECT IN ANY PRODUCTION USAGE. WE ARE NOT RESPOND FOR ANY LEGAL OR HUMANLY PROBLEM.**
 
 <details>
@@ -63,17 +64,17 @@
 
 ## Getting Started
 
-On a prepared Linux host, run:
+For development testing on a prepared Linux test host, explicitly select the `dev` channel, which follows `main` and builds from source:
 
 ```bash
-curl -fsSL https://raw.githubusercontent.com/FelisMC/Felis/main/deploy/bootstrap.sh | sudo bash
+curl -fsSL https://raw.githubusercontent.com/FelisMC/Felis/main/deploy/bootstrap.sh | sudo FELIS_VERSION_BOOTSTRAP=dev bash
 ```
 
 The script installs K3s, deploys PostgreSQL and the control plane inside it, and launches a setup wizard. When setup completes, open the configured domain in a browser to reach the control panel.
 
 * **Setup wizard**: Configure panel access and storage first. The host administrator then initializes the first Owner and receives a one-time browser setup link (valid for 30 minutes). Open it, record an email, and create a passkey to enter the panel; Minecraft is not required. Later, link a game role from Account by selecting an authentication source, entering a role name or UUID, and confirming it. Players retain the in-game bind-code flow. Rerun `sudo felis setup` if login setup is unfinished or the link expires; accounts with an established login factor are never reset. Login/lobby failures do not block panel initialization. Account explains Yggdrasil authentication and shows the join address and Java client version for the login/lobby servers. Bootstrap records the built protocol in `[velocity].game_version`; set it yourself for custom images, otherwise the panel reports it as unknown. Standard Yggdrasil endpoints support role lookup directly; sources with a nonstandard `hasJoined` path can set `[[auth_source]].api_url` to their API root, with game-code linking still available as a fallback. The installer launches the wizard automatically only on an interactive terminal; when output is redirected to a log or the install runs under cloud-init, run `sudo felis setup` after it finishes. Setting `FELIS_NO_SETUP=1` makes the installer end at its summary.
 
-* **Supported hosts**: CentOS Stream 9 (aarch64) is verified on physical hardware; Ubuntu 24.04 (x86_64) is tested in CI on every push with a fresh install, a rerun, an upgrade and the install command above (see [operations §1](docs/operations.md#1-supported-hosts)).
+* **Supported hosts**: CentOS Stream 9 (aarch64) is verified on physical hardware; CI tests fresh installation and repeat installation of development builds on Ubuntu 24.04 (x86_64) on every push (see [operations §1](docs/operations.md#1-supported-hosts)).
 
 * **Preflight checks**: Before modifying the host, the installer checks memory, disk, ports, network range conflicts, existing Kubernetes installations and outbound connectivity. If any check fails, it lists all problems and exits, leaving the host unchanged (see [operations §1](docs/operations.md#1-supported-hosts) for the checks).
 
@@ -83,6 +84,8 @@ The script installs K3s, deploys PostgreSQL and the control plane inside it, and
 <summary>Installation sources and restricted networks</summary>
 <br>
 
+The following describes the release mechanism. No public release assets are currently available; development testing uses source builds.
+
 A release installation takes the binary, all images and the Velocity plugin from the release assets prebuilt in CI, verifying each against `SHA256SUMS` before import. The host requires no Docker, Gradle or Go, and no access to Docker Hub. If an asset is missing or fails verification, only that image falls back to a local build, and the installer prints a notice (see [troubleshooting §15c](docs/troubleshooting.md)).
 
 The assets can also be copied to the host in advance and installed with `FELIS_ARTIFACT_DIR=<absolute path>`; the Felis binary, images and plugin are then read from that directory. k3s and its images, the JRE, cloudflared, Velocity and the Via plugins are still downloaded from GitHub and PaperMC; hosts with SELinux enabled, such as RHEL, Fedora and openSUSE Leap, additionally install k3s-selinux from rpm.rancher.io; system packages come from the distribution's repositories.